MECHANICAL ANALYSIS OF SUPPORTING LEG DURING ROUNDHOUSE KICK IN MUAY THAI BEGINNERS

The purpose of this study was to analyse and compare the mechanics of dominant and non-dominant supporting leg while executing the roundhouse kick of beginner level Muay Thai exponents. Ten male MuayThai beginners (20 ± 1 years old) participated in this cross-sectional study. All participants were allowed to familiarize and perform three trials of the roundhouse kick for each leg. An infrared motion analysis 3D system and force plate were used to compile the kinematic and kinetic data of the supporting leg from the roundhouse kick. The Descriptive Statistics and Mann-Whitney U test was leveraged by the researcher to compare the difference between selected parameters as moment of hip, knee, ankle joints and ground reaction force that effect on supporting leg, respectively. The results of study revealed that there was antero-posterior GRF and support leg joint moments of supporting dominant leg significant difference level at 0.01. The findings of this study demonstrated the important data for the Muay Thai beginners to enhance the control of their dominant support leg when executing a better roundhouse kick.(Journal of Sports Science and Technology 2019; 19(2): 72-81)(Received: 11 September 2019, Revised: 30 October 2019, Accepted: 13 November 2019)Keywords: Mechanism, Ground reaction force, Muay Thai, Roundhouse kick*Corresponding Author: Yutthana RAINSOISports Science Division, Faculty of Science, Chandrakasem Rajabhat University.Bangkok.Thailand.10900. 086-7811-666E-mail: yutthana.r@chandra.ac.th